Indians widely describe Gandhi as the father of the nation (Hindi: राष्ट्रपिता).[11][12] The title "The Father of the Nation" for Gandhi is not an official title and has not been officially accorded by Government of India. An RTI query filed by a 10-year-old girl from Lucknow in February 2012 revealed that PMO has no records of ever according such title to Gandhi. MHA and National Archives of India also communicated of not having any records. Origin of this title is traced back to a radio address (on Singapore radio) on 6 Jul 1944 by Subhash Chandra Bose where Bose addressed Gandhi as "The Father of the Nation". On 28 Apr 1947, Sarojini Naidu during a conference also referred Gandhi as "Father of the Nation".[13][14] The RTI applicant had also pleaded for Gandhi to be officially declared as "Father of the Nation" to which the MHA informed that Gandhi cannot be accorded with the title by Government of India since the Indian constitution does not permit any titles except educational and military titles.

Only 3% of Indians pay income tax, in a population of 1.2bn. One explanation for this is that agriculture is exempt and two-thirds of Indians live in rural areas. A large chunk of the economy is also informal, unorganised labour, for which it's harder to collect taxes. Many argue that some of the country's financial problems would be solved in one fell swoop, if this massive tax hole could be filled.

4.Hockey is not the national game of India

In the year 2012, a 10 year old girl from Lucknow, Aishwarya Parashar, had filed an RTI application to the PMO seeking certified copies of orders related to declaration of National anthem, song, sport, animal, bird, flower and symbol. Her queries were transferred to the Home Ministry which forwarded the query related to National Sport to the Ministry of Youth Affairs and Sports. The Ministry of Youth Affairs and Sports, in its reply, said the ministry has not declared any sport as the national game of India. The information was sent to Aishwarya by the additional secretary in the Sports Ministry, Shiv Pratap Singh.

5. USB was developed by an Indian-American computer architect.

Ajay V. Bhatt is the man behind USBs. You can also credit him for AGP (Accelerated Graphics Port), PCI Express, Platform Power management architecture and various other chip-set improvements.

6. Indian entrepreneur Vinod Dham is known as the “Father of the Pentium Chip”.

Vinod Dham’s accomplishment as the “Father of Pentium” and as an Indian-American technology pioneer from Silicon Valley, is being celebrated at a first-ever exhibition on South Asians in the National Museum of Natural History at the storied Smithsonian in Washington DC, highlighting Indian-Americans who have helped shape America.

Edit 1: Adding few more points:

7.Hindi is not our “National Language”.

As per Article 343 of the Constitution of India, India's official languages shall be Standard Hindi (the dialect known as khadi boli) written in the Devanagari script, and English.

However, India does not have a national language. There is a difference between a national language and an official language. While a national language would have a patriotic and nationalistic identity, an official language is one which is designated for communication at the official level.

8.E-Mail was Developed by an Indian.

Shiva Ayyadurai. VA Shiva Ayyadurai (born December 2, 1963 in Bombay) is an American scientist of Indian origin. As a high school student in 1979, he developed an electronic version of an interoffice mail system, which he called "EMAIL" and copyrighted in 1982.

9.IEEE has proved that wireless communication was first invented by an Indian scientist

Sir J. C. Bose invented the Mercury Coherer (together with the telephone receiver) used by Guglielmo Marconi to receive the radio signal in his first transatlantic radio communication over a distance of 2000 miles from Poldhu, UK to Newfoundland, St. Johns in December 1901. Guglielmo Marconi was celebrated worldwide for this achievement, but the fact that the receiver was invented by Bose was totally concealed.

Sushruta is the most celebrated physician and surgeon in India. Though he practiced during the 5th century B.C., many of his contributions to medicine and surgery preceded similar discoveries in the Western world. Sushruta devotes a complete volume of his experiences to ophthalmologic diseases. In the Uttar Tantrum, Sushruta enumerates a sophisticated classification of eye diseases complete with signs, symptoms, prognosis, and medical/surgical interventions. In particular, Sushruta describes what may have been the first extracapsular cataract surgery using a sharply pointed instrument with a handle fashioned into a trough. His ability to manage many common eye conditions of the time with limited diagnostic aids is a testament to his virtuosity.